/*

    gl-oauth  OAuth related projects and samples.
    Copyright (c) 2012-2015 National Marrow Donor Program (NMDP)

    This library is free software; you can redistribute it and/or modify it
    under the terms of the GNU Lesser General Public License as published
    by the Free Software Foundation; either version 3 of the License, or (at
    your option) any later version.

    This library is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; with out even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
    License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with this library;  if not, write to the Free Software Foundation,
    Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA.

    > http://www.fsf.org/licensing/licenses/lgpl.html
    > http://www.opensource.org/licenses/lgpl-license.php

 */
package org.immunogenomics.gl.oauth;

public class AuthorizationCache implements TokenValidator {

    private final TokenValidator delegate;
    private final TokenStore tokenStore;

    public AuthorizationCache(TokenValidator delegate, TokenStore tokenStore) {
        this.delegate = delegate;
        this.tokenStore = tokenStore;
    }

    public AccessTokenDetails validate(String token) {
        AccessTokenDetails authorization = tokenStore.get(token);
        if (authorization == null) {
            authorization = delegate.validate(token);
            tokenStore.put(token, authorization);
        }
        return authorization;
    }

    public void close() {
        delegate.close();
        tokenStore.dispose();
    }

}
